Cisco ISR4221X/K9 Branch Router with 8GB DRAM
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ISR4221X/K9 Overview
Distinguish the X memory configuration
The exact ordering row specifies 8GB of DRAM and 8GB of flash. The non-X ISR4221/K9 row instead lists 4GB DRAM. Cisco describes the 4221X memory as fixed, so a project should select the correct order rather than assume a later memory expansion.
Keep interfaces separate from performance
Two onboard Gigabit Ethernet interfaces and two NIM slots describe connectivity and expansion, not a multi-gigabit service-throughput guarantee. The series comparison covers larger routers as well; their port counts and performance figures must not be combined into this model. Confirm the software entitlement, required services and workload before sizing an existing installation.
Plan the remaining support window
The exact PID appears in Cisco's ISR platform retirement notice. End of sale was November 7, 2023 and final entitled support is November 30, 2028. The listed migration platform is C8200L-1N-4T; compare its interfaces, licenses and migration requirements rather than treating it as a configuration-identical replacement.
ISR4221X/K9 Specification
| Order code | ISR4221X/K9 |
|---|---|
| Onboard GE interfaces | 2 |
| NIM slots | 2 |
| Default DRAM | 8GB, fixed on the 4221X platform |
| Default flash | 8GB |
| Cisco end of sale | 2023-11-07 |
| Final entitled support | 2028-11-30 |
Cisco exact ordering and memory information | Exact PID retirement and migration notice
ISR4221X/K9 Warranty
 | Product Quotation |  | Condition and Packaging |
 | Technical Support Enquiry |  | Returns and Replacement |
 | Shipping Arrangements |  | Warranty Terms |
ISR4221X/K9 FAQ
What is ISR4221X/K9?
Cisco ISR4221X/K9 Branch Router with 8GB DRAM is a CISCO Router ISR 4000 product supplied by YYST Global for enterprise IT procurement and infrastructure projects.
What interfaces and ports does ISR4221X/K9 provide?
For ISR4221X/K9, the manufacturer specification lists onboard ge interfaces as 2.
What memory or storage is listed for ISR4221X/K9?
For ISR4221X/K9, the manufacturer specification lists default flash as 8GB.
Is ISR4221X/K9 available from YYST Global?
Contact YYST Global to confirm availability for ISR4221X/K9, the required quantity, exact configuration, delivery destination and current lead time before ordering. A product listing does not confirm current inventory.
What is the price of ISR4221X/K9?
The current reference price for ISR4221X/K9 is US$ 856.00. Final pricing can change based on stock, quantity, configuration and delivery destination.
Related products
Related ISR4221X/K9
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ISR4221/K9 is the base Cisco ISR 4221 order described with two Gigabit Ethernet interfaces, two NIM slots, 8 GB flash, 4 GB DRAM and IP Base. See the verified interface, replacement and lifecycle boundaries before requesting a quote.
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ISR4451-X-SEC/K9 Cisco ISR 4451-X Security Bundle Router
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ISR4461-SEC/K9 Cisco ISR 4461 Security Bundle Router
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